During working process, the sharp teeth and small vibration which can effectively make a balance when drilling holes and stables the operation. The new design of chip removal groove can make the iron scraps quickly removed and make the work more smooth.The grinding center drill, which positioning more accurately, with the sharp effect,all these make it a labor-saving during working process.The triangle handle can effectively prevent slipping.

HSS Hole Saws can work as aluminum hole sale, metal plate hole saw, rigid plastic steel hole saw, it works efficiently and convenient.BOSENDA HSS Hole Saws using high-quality materials, suitable for stainless steel, alloy plate, hard steel plate, thin steel plate, SMD iron plate, aluminum doors, iron sheet, aluminum alloy, non-standard metal, all kinds of pipe opening and other metal materials processing drilling.

The HSS hole saws/HSS drill has hexagonal handle design, 12-100 mm can be customized, the part of the tooth edge is grind by intelligent indexing of CNC machine tool; once formed, the population is sharp and the precision is high; after vacuum heat treatment, the toughness and hardness of the opener meet the very good working requirements.

HSS Hole Saw  is  used in bench drill, pistol drill, stereo electric drill and lathe machinery.

During working process, adding water or coolant will make the work more effective and better as well as prolong the product life. When the hole opener is installed into the drill, the three faces of the corresponding handle need to fitted tightly with the power tools. In the process of operation, if there is any abnormality or the chip removal is not ideal, stop the work first, discharge the waste chips and then continue to work again.

BOSENDA HSS Hole Saws sizes are as below:
12mm,13mm,14mm,15mm,16mm,17mm,18mm,18.5mm,19mm,20mm,20.5mm,21mm,21.5mm,22mm,22.5mm,23mm,24mm,25mm,25.5mm,26mm,27mm,28mm,30mm,32mm,35mm,38mm,40mm,42mm,45mm,48mm,50mm,53mm,55mm,60mm,65mm,70mm,75mm,80mm,85mm,90mm,95mm,100mm,23.5mm,19.5mm,Center Drill with 5 * 40 (special for 12-32MM), and center drill 6 * 40 (special for 35-100mm).